On 9/26/18 8:33 PM, Cesar Philippidis wrote:
> This patch adds nvptx support for the atomic FETCH_AND_OP functions. I
> recall that this used to be important for OpenACC reductions back in the
> GCC 5.0 days before Nathan split reductions into four phases. Nowadays,
> atomic reductions use a spin l
This patch adds nvptx support for the atomic FETCH_AND_OP functions. I
recall that this used to be important for OpenACC reductions back in the
GCC 5.0 days before Nathan split reductions into four phases. Nowadays,
atomic reductions use a spin lock that's implemented directly by the
nvptx BE. Ther
